#include "add.h"
#include "sub.h"


int main()
{
	int a = 5;
	int b = 4;
	int c = 0;
	c = add(5,4);
	printf("a + b = %d \r\n",c);
	c = sub(5,4);
	printf("a - b = %d \r\n",c);

}
